CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents ($166,416 and $168,408 related to variable interest entities (“VIEs”))	$ 282,695	$ 259,351
Restricted cash	19,946	14,480
Restricted investments	88,240	91,556
Accounts receivable ($69,197 and $54,040 related to VIEs)	1,140,592	1,171,085
Retention receivable ($157,729 and $187,615 related to VIEs)	563,967	585,556
Costs and estimated earnings in excess of billings ($83,546 and $83,911 related to VIEs)	1,299,786	1,377,528
Other current assets ($29,553 and $33,340 related to VIEs)	132,321	179,215
Total current assets	3,527,547	3,678,771
PROPERTY AND EQUIPMENT (“P&E”), net of accumulated depreciation of $510,604 and $505,512 (net P&E of $28,773 and $22,133 related to VIEs)	441,606	435,088
GOODWILL	205,143	205,143
INTANGIBLE ASSETS, NET	69,983	70,542
OTHER ASSETS	232,499	153,256
TOTAL ASSETS	4,476,778	4,542,800
CURRENT LIABILITIES:
Current maturities of long-term debt	66,228	70,285
Accounts payable ($33,540 and $36,484 related to VIEs)	471,938	495,345
Retention payable ($44,481 and $44,859 related to VIEs)	245,972	246,562
Billings in excess of costs and estimated earnings ($471,199 and $480,839 related to VIEs)	978,505	975,812
Accrued expenses and other current liabilities ($3,147 and $5,082 related to VIEs)	171,604	179,523
Total current liabilities	1,934,247	1,967,527
LONG-TERM DEBT, less current maturities, net of unamortized discount and debt issuance costs totaling $13,136 and $13,980	914,454	888,154
OTHER LONG-TERM LIABILITIES	238,370	245,135
TOTAL LIABILITIES	3,087,071	3,100,816
COMMITMENTS AND CONTINGENCIES (NOTE 10)
Stockholders' equity:
Preferred stock - authorized 1,000,000 shares ($1 par value), none issued	0	0
Common stock - authorized 112,500,000 shares ($1 par value), issued and outstanding 51,644,903 and 51,521,336 shares	51,645	51,521
Additional paid-in capital	1,142,081	1,140,933
Retained earnings	255,105	304,301
Accumulated other comprehensive loss	(45,310)	(47,037)
Total stockholders' equity	1,403,521	1,449,718
Noncontrolling interests	(13,814)	(7,734)
TOTAL EQUITY	1,389,707	1,441,984
TOTAL LIABILITIES AND EQUITY	$ 4,476,778	$ 4,542,800